If you use a separate buildout for i18ndude, you may want to update
the zope.tal version to 4.0.0 or higher, with fixes a possible
UnicodeDecodeError while printing a warning when a msgid already
exists. If you happen to hit that corner case, the new version should
help.

If you add i18ndude to a buildout that handles a Zope, CMF or Plone
site, you probably already have versions pinned so then you do not
need to add an extends line.

You can also use pip or easy_install to install it. With
pip you may want to create a requirements.txt based on that
ztk versions list.